He climbs into a concrete and brick built silo 180cm round attached to a barn. On the floor there are two blocks of 50g of magnesium chalk and one hand size stone. By using the whole space he walks around as fast as possible for the whole duration. Sometimes kicking the stone with his foot. As the walks around he is trying to mark numbers on the right side of his head, trying to document the amount of times he turns in the silo.